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Greening vs. Gassing in the Arctic

Scientists have long debated how the global climate might be affected by thawing of the Arctic’s permanently frozen soils, known as permafrost. As permafrost melts, bacteria break down the organic matter in the soil, releasing greenhouse gases. But at the same time, plants flourish with access to warmer, deeper soils, taking in carbon dioxide. The overall affect on the climate was assumed to be the balance between the gassing and greening. 

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